PhpStorm reformat array [duplicate]

I lost my previous settings from PhpStorm for formatting an array like this:

$array = [
    'short_key' => 'value1',
    'a_much_longer_key' => 'value2',
    'another_long_key' => 'value3',
];

by hitting Ctrl + Alt + L it would become like this:

$array = [
    'short_key'         => 'value1',
    'a_much_longer_key' => 'value2',
    'another_long_key'  => 'value3',
];

How is this setting called? How to make PhpStorm do this? It has to be somewhere under "Settings -> Code Style".